Blood Stone doubles the chance of finding a legendary gladiator in gladius cases.
Guild's store needs to be at level 6+ to be able to purchase blood stones (with merits).
Note that one Blood Stone is consumed for every gladiator revealed from a gladius case, whether it is legendary or not. For one gladius case, one needs 5 Blood Stones or some of the gladiators will be opened without the doubled chance to be legendary.
Related:
Navigate to:
